baber/WOPTO huggingface dataset:
Patent CA-2143934-A1 (CA)
Title: Pourable chewing gum and confection composition
Inventor: CORRIVEAU CHRISTINE L
IPC: A23G4/10
Filed: 1993-09-07
Abstract: A novel chewing gum and confection composition is disclosed which is pourable and includes between about 30 and about 90 percent particles of chewing gum having an average particle size of between about 0.5 and 6 mm. The pourable composition also includes between about 10 and about 70 percent dry, free-flowing, sweet confection. Preferably, the chewing gum particles are bits of bubble gum and the sweet confection is powdered dextrose. A novel method of making this pourable composition is also disclosed.
Patent CA-2144935-A1 (CA)
Title: Process for the preparation of 2-halogeno-4,5-difluorobenzoyl fluorides
Inventor: ANTONS STEFAN
IPC: C07C25/13
Filed: 1995-03-17
Abstract: 2-Halogeno-4,5-difluoro-benzoyl fluorides are obtained in high yields by reacting 2,4-dichloro-5-fluoro-benzoyl halides with potassium fluoride in an aprotic solvent. The 2-halogeno-4,5-difluoro-benzoyl fluorides prepared in this way are particularly suitable as intermediates for the preparation of antibacterial active substances.
Patent CA-2147902-A1 (CA)
Title: Gas Discharge Display Apparatus and Method for Driving the Same
Inventor: SHINO TAICHI
IPC: H01J17/49
Filed: 1995-04-26
Abstract: A plurality of scanning electrodes and a plurality of sustaining electrodes parallel to each other are located on an inner face of a first glass substrate. Each of the scanning electrodes and each of the sustain- ing electrodes form a pair. A dielectric layer and a protection layer are formed on the first glass substrate in this order, covering the electrodes. A plurality of data electrodes perpendicular to the scanning electrodes and the sustaining electrodes are located on an inner face of a second glass substrate which is located opposed to the first glass substrate with a discharge space interposed therebetween. In an AC-type PDP having such a structure, at least one of the plurality of scanning electrodes and the plurality of sustaining electrodes are divided into a plurality of groups, and pulses having different phases are applied to the electrodes in differ- ent groups, thereby causing sustaining discharge. The scanning electrodes and the sustaining electrodes may be comb-like with teeth. The comb-like scanning electrodes and the comb-like sustaining electrodes are opposed to each other with a small gap interposed therebetween in the manner that the teeth thereof are in engagement with each other. In such a case, the data electrodes are located opposed to and in a longitudinal direction of the teeth of the scanning electrodes.
Patent CA-2148051-A1 (CA)
Title: Process for organooxylation of cyanoalkylchlorosilanes
Inventor: BANK HOWARD MARVIN
IPC: C07F7/18
Filed: 1995-04-27
Abstract: A process for the organooxylation of .beta.-cyanoalkyl-chlorosilanes.  The process comprises contacting in a film a .beta.-cyanoalkylchlorosilane with an alcohol capable of forming an ester with the silicon of the .beta.-cyanoalkylchlorosilane and thereby forming an equilibrium mixture comprising a (.beta.-cyanoalkyl)organooxysilane and hydrogen chloride.  The film is heated at a temperature sufficient to cause vaporization of the hydrogen chloride from the equilibrium mixture thereby increasing yield of (.beta.-cyanoalkyl)organooxysilane in the equilibrium mixture.  In a preferred process, the process is run in a falling-film type reactor or a wiped-film type reactor.
Patent CA-2152948-A1 (CA)
Title: Phosphating compositions and processes, particularly for use in fabrication of printed circuits utilizing organic resists
Inventor: LARSON GARY B
IPC: H05K3/06
Filed: 1993-11-15
Abstract: Composition and methods for providing a phosphate conversion coating on a metal surface, particularly a copper surface, characterized in that the phosphating composition includes at least one composition-soluble compound containing vanadium, niobium, tungsten or tantalum. The phosphate conversion coatings so produced are thicker, more durable and more uniform than those produced by known phosphating compositions. The compositions and processes are especially useful for providing a passivating/uniformizing coating layer on copper surfaces to which organic resin is thereafter deposited to serve as a resist in printed circuit fabrication sequences, particularly when the organic resin is an electrophoretically deposited organic resin. Also described is the microetching of copper surfaces with a phosphoric acid/peroxide microetchant preparatory to deposit thereon (or after a further provision of a phosphate conversion coating) of a photoresist which is then imagewise exposed and developed to provide a patterned resist.
Patent CA-2153403-A1 (CA)
Title: Compositions having improved penetration resistance and articles fabricated from same
Inventor: HARPELL GARY A
IPC: B32B17/06
Filed: 1994-02-15
Abstract: An improved flexible composite of manufacture especially suitable for use as a ballistic resistant body armor, said improved penetration resistant composite of the type comprising  at least two penetration resistant layers, each layer comprising a flexible fibrous substrate a fibrous network having a plurality of penetration resistant elements on a surface thereof, wherein at least one of the inner layers further comprising a fibrous element comprising fibrous network positioned between said substrate and said penetration resistance element.
Patent CA-2154393-A1 (CA)
Title: Nozzle assembly
Inventor: SCHELLENBERG RANDALL STEWART
IPC: B05B15/68
Filed: 1995-07-21
Abstract: An aimable nozzle for discharging fluids comprises an assembly of two parts wherein a spherical bushing is disposed in a spherical female socket of a resilient body near the oblique outlet face. An interference fit between the two parts effects a seal. The inlet end of the body comprises a common tapered pipe thread, with a concentric axial hole in fluid communication with the female socket. The body is provided with wrench flats to facilitate installation. Via a combination of body rotation and bushing rotation, the fluid stream may be directed within a sperical sector comprising an approximate hemisphere whose instantaneous arc center is approximately at the intersection of the pipe thread centerline and bushing centerline.
Patent CA-2156585-A1 (CA)
Title: Liquid dispenser flow calming
Inventor: WARDLE DAVID GRANT
IPC: B65B31/00
Filed: 1995-08-21
Abstract: A liquid cryogen dispenser 10 includes a consolidation means 20 adjacent its outlet 14 for causing gas contained in the liquid to consolidate into bubbles of sufficient buoyancy to cause them to rise to the surface of the liquid rather than be drawn through the outlet 14 where it can disrupt the smooth flow of liquid cryogen.
Patent CA-2158985-A1 (CA)
Title: Surgical needle holder
Inventor: SMITH JAMES RICHARD
IPC: A61B17/06
Filed: 1994-03-23
Abstract: A surgical needle holder is provided for guarding the tip of a needle in an inoperative position. The needle tip is guarded in the inoperative position in retaining means such as a groove or slot associated with the jaws of the needle holder.
Patent CA-2161023-A1 (CA)
Title: Interactive user interface
Inventor: SHALIT ANDREW
IPC: G06F3/0481
Filed: 1994-04-18
Abstract: An interactive user interface for a computer controlled system to simplify browsing and navigating through information structures.  The interface uses a split-pane icon (38, 39) on a window scroll bar, or input (42) and output (43) icons on a window title bar (41). When activating the split-pane icon (38, 39) by dragging a selected object to it, a new pane opens up displaying the contents of the object. Where a first (50) or second (51) pane exists, dragging a selected object to the first or the second pane's input icon (56), or dragging the output icon (57) of the first pane (50) to the second pane's input icon (56), will display the contents of a selected object in the first (50) or second (51) pane respectively. Other ways of controlling the displays in the same or different window or panes are also described.
Patent CA-2161186-A1 (CA)
Title: Device for excision of a fistula and method of using same
Inventor: AL-TAMEEM MOHSIN
IPC: A61B17/32
Filed: 1995-10-23
Abstract: The device includes a bar having a longitudinal axis and adapted to be inserted into a fistulous tract.  A cutting tool cooperates with the bar such that the cutting tool separates the fistulous tract from the surrounding tissue by coring the fistula.
Patent CA-2161639-A1 (CA)
Inventor: DOIRON TIMOTHY J
IPC: H04L9/08
Filed: 1995-02-24
Abstract: Un appareil radioélectrique numérique a une mémorisation "à clé" normalisée pour plusieurs systèmes de cryptage différents (DES, VGE, VGS, etc.). Les clés cryptographiques sont mémorisées dans un tableau d'une mémoire non volatile, par exemple EEPROM. Les "clés" sont mémorisées sous forme "cryptée" de sorte qu'il n'est pas facile d'en découvrir l'identité par "vidage" du contenu de mémoire. La présente invention offre une sécurité supplémentaire en prévoyant l'extraction des "clés" du tableau mémorisé et le re"cryptage" de tout le tableau chaque fois qu'un dispositif chargeur à clé est fixé à l'appareil radioélectrique. De multiples banques de clés sont utilisées pour assurer une meilleure sécurité vocale par accroissement du nombre de clés de cryptage disponibles par appareil.
Patent CA-2162553-A1 (CA)
Title: Methods and apparatus for monitoring water process equipment
Inventor: THUNGSTROM ERIC A
IPC: G01M3/22
Filed: 1995-11-09
Abstract: Methods and apparatus are provided for using tracers to monitor industrial process equipment to which liquid is added and from which liquid is removed. In preferred embodiments, the methods are directed to detecting water leakage in a boiler in which an aqueous temperature control liquid is supplemented with feedwater at a known or unknown rate and is removed as blowdown, sootblower steam and steam at a known rate.      The methods include determining the blowdown removal rate, adding a tracer to the temperature control liquid at a rate that is directly proportional to the blowdown removal rate, analyzing the blowdown to determine the measured concentration of tracer contained therein, deriving an expected concentration of tracer in the blowdown, comparing the measured and expected concentrations to detect excessive variance between them, and also determining the rate of feedwater supplementation, monitoring the rate of blowdown, sootblower steam and steam removal, and comparing the difference between the supplementation and removal to detect excessive variation between them.
Patent CA-2162713-A1 (CA)
Title: Filler for an optical transmission element having at least one optical waveguide
Inventor: FEHN INGEBURG
IPC: C08K3/36
Filed: 1994-05-02
Abstract: Filler for an optical transmission element having at least one optical waveguide The filler for an optical transmission element containing at least one optical waveguide contains a plasticizer.
Patent CA-2164393-A1 (CA)
Title: Electric Hair Trimmer
Inventor: MASUDA KESAYUKI
IPC: B26B19/42
Filed: 1995-12-04
Abstract: An electric hair trimmer with a blade edge protective mechanism including a protective plate that is movable between two positions along movable and immovable blades so that the protective plate extends beyond the edges of the blades when the shutter plate is at one position thus hindering the exposure of the blade edges and retracts from the edges of the blade when the protective plate is at another position thus exposing the blade edges.  The main switch of the trimmer is linked to the protective plate so that the operation of the main switch changes the position of the protective plate between two positions.
Patent CA-2165674-A1 (CA)
Inventor: MATHIAS ECKART
IPC: B23K35/363
Filed: 1994-06-14
Abstract: A novel anisotropically conductive  solder paste and a method of use thereof to join metallic parts in electronic manufacturing processes, in particular surface-mount electronic manufacturing processes. The solder paste is fluxless and reflowable for purpose or repair and achieves electrical anisotropy soldering component leads to circuit board pads, while maintaining electrical insulation properties between adjacent joints.
Patent CA-2166449-A1 (CA)
Inventor: THOMSON CHRISTOPHER STUART
IPC: G01C15/00
Filed: 1996-01-02
Abstract: A real estate electro tape is provided that measures the length of an interior or exterior wall or other similar structure using optical means. A sonic tape is used to measure the perpendicular distance from the device to the interior or exterior wall. Two steerable lasers are then used to determine the angles between the perpendicular and the beams aimed at the wall edges. An algorithm is applied to the angular and perpendicular distance data to obtain the length of the wall.      A microprocessor performs the calculations, the results of which are displayed on an electro optical display.
Patent CA-2166831-A1 (CA)
Title: Portable radio telephones and methods of operation
Inventor: TAT NGUYEN QUAN
IPC: H04M1/72511
Filed: 1996-01-09
Abstract: A portable radio telephone (5) communicates with base stations (1, 2) in a digital radio telephone system, such as DECT, employing TDMA transmission. The portable radio telephone is programmed with an algorithm which is operative to select a communication channel by storing a blind slot mask (7) representative of the time slots in each frame which are excluded, either by virtue of being occupied by the base station or by the portable radio telephone itself. Hence, any channel attempted and failed in an occupied time slot is excluded and marked blind in the blind slot mask. Further, the algorithm is operative to check the time slots for availability in a predetermined sequence which corresponds to the temporal sequence of the slots (or the reverse thereof) to promote orderly filling of the time slots at the base stations.
Patent CA-2167480-A1 (CA)
Title: Improvements relating to prodrugs
Inventor: SPRINGER CAROLINE JOY
IPC: A61K47/48
Filed: 1994-07-27
Abstract: The present invention provides a prodrug of the general formula FTLi-(PRT)m, where FTLi is a ras inhibitor such as a famesyltransferase inhibitor compound and PRT represents m protecting groups capable of being cleaved from the ras inhibitor by the action of an enzyme, where m is an integer from 1 to 5.
Patent CA-2169674-A1 (CA)
Inventor: BRANDHORST GERD
IPC: A61C9/00
Filed: 1996-02-16
Abstract: A container for storing and dispensing a substance, par-ticularly a dental substance,  comprises a cylindrical  car-tridge 20 and a dispensing nozzle 21 communicating therewith. The dispensing nozzle 21 is formed as a rigid curved tube having an inlet opening of the same diameter as the cartridge 20 and being aligned with the cartridge axis 14, whereas the dispensing opening of the nozzle 21 extends at an angle with respect to the cartridge axis 14. The nozzle 21 is circularly curved and tapers in such a way that its inner cross-sec-tional shape is circular throughout the length of the nozzle The interior cross-section and the wall thickness  of the nozzle 21 decrease toward the dispensing end.
Patent CA-2169962-A1 (CA)
Inventor: SONG GHIE HUGH
IPC: G02F1/01
Filed: 1994-09-15
Abstract: An acousto-optic tunable filter (100) is provided with an acousto-optic interaction profile that results in a frequency response with near-ideal bandpass filter characteristics of near-unity transmission inside the passband and near-zero transmission outside the passband. The acousto-optic interaction profile which results in this frequency response has a phase polarity which alternates and is damped, i.e., the acousto-optic interaction profile has a damped oscillating shape. The physical structure to implement this filter comprises a pair of acoustical waveguides (110, 112) which taper toward each other at the beginning of the profile and then are spaced apart by a constant distance. A damping layer (132) or other damping structure is provided to achieve the damping characteristics of the profile.
Patent CA-2171066-A1 (CA)
Title: Improved two roll toilet paper dispenser
Inventor: KRUEGER DONALD G
IPC: A47K10/32
Filed: 1996-03-05
Abstract: A two roll paper dispenser has an enclosure for confining first and second roll-supporting man-drels mounted on slide blocks in a cantilevered po-sition.  The mandrels are movable from a first posi-tion wherein the first mandrel slide block is lo-cated at a juncture of a first path portion and a second path portion and the second mandrel slide block is located above the first mandrel slide block in the first path portion and wherein the first man-drel slide block can be moved from the juncture along the second path portion when sufficient paper is consumed from the roll carried thereon to open the juncture allowing the slide block of the second mandrel to be moved to expose the second roll to the access opening.  A spring engages the first mandrel slide block biasing the mandrel for movement away from the juncture,  and the second mandrel slide block is biased for movement along the second path toward the juncture.  The housing is preferably pro-vided with a metering block on its rear wall posi-tioned to engage a roll of paper on the first man-drel. The block serves multiple functions, including limiting the use of the dispenser to accomodate a particular diameter roll. Movement of the roll on the second mandrel to the juncture is also prevented until the roll of paper on the first mandrel is ex-hausted.  The projection preferably has a convex roll-engaging surface.   The mandrels each have a proximal end attached to one of the mandrel slide blocks and a distal free end for insertion thereon of a roll of paper.  The distal end is tapered on its lower surface to a reduced diameter and is pro-vided on its upper surface with an upwardly extend-ing projection.
Patent CA-2171783-A1 (CA)
Title: Process for the manufacture of condoms
Inventor: KOPELOWICZ ALBERTO
IPC: C08J5/04
Filed: 1996-03-14
Abstract: A  process  for  manufacturing  condoms  includes  the introduction, during the condom's manufacturing stage, of a longitudinal layer of non-elastic microfilaments aligned on the walls of  the condom,  to make the condom capable of avoiding longitudinal stretching without in any way affecting its transversal elasticity, thus decreasing almost to zero, the chances of tearing.
Patent CA-2173861-A1 (CA)
Title: Reaction tube and method of use to minimize contamination
Inventor: HANLEY KATHLEEN A
IPC: B01L99/00
Filed: 1994-10-21
Abstract: A disposable reaction vessel for performing nu-cleic acid amplification assay. The disposable reac-tion vessel has a penetrable cap that can be pene-trated by an automated pipettor to aspirate a portion of an amplified reaction product. The disposable re-action vessel contains the reagents necessary to per-form a nucleic acid amplification assay. A patient speciment is added to the unit dose reagents in the disposable reaction vessel and the penetrable cap is closed. The disposable reaction vessel containing the reaction mixture and the specimen undergoes ampli-fication, typically by placing it in a thermal cycler. After amplification the intact disposable reaction ves-sel is transferred to an automated analyzer where an automated pipettor penetrates the closure membrane and aspirates a portion of the amplified sample for further processing, without removal of the reaction vessel cap. This avoids the generation of potentially contaminating aerosols or droplets.
Patent CA-2175340-A1 (CA)
Title: Selective resynchronization in a digital cellular communications system during handover
Inventor: RAITH KRISTER ALEX
IPC: H04L9/12
Filed: 1995-09-15
Abstract: In a ciphered digital cellular communications system a method and apparatus are presented for selective resynchronization of the cipher upon initial channel acquisition or handoff. Where synchronization between the old channel and the new channel exists, the base station indicates along with an initial Traffic Channel Designation (ITCD) message or handover message that no resynchronization is required. Where, synchronization between the old channel and the new channel does not exist, the base station provides an indication along with an ITCD or handover message that resynchronization is required and from the content of this message the manner in which resynchronization is to be achieved is further indicated. By providing options for resynchronization security may be optimized or compromised for handover speed depending upon the specific requirements of the base station or the mobile station.
Patent CA-2176950-A1 (CA)
Title: Polymerization catalyst systems, their production and use
Inventor: JEJELOWO MOSES OLUKAYODE
IPC: C08F4/6592
Filed: 1994-09-09
Abstract: This invention is generallly directed toward a supported catalyst system useful for polymerizing olefins. The method for forming the catalyst system of the invention provides for combining a monocyclopentadienyl bulky ligand transition metal catalyst system with a separately supported organometallic compound. A preferred method provides for supporting the catalyst system on a carrier and contacting such supported system with a separately supported organometallic compound. The bulky ligand transition metal compound used in the catalyst system of the invention can be a metallocene. The ionic metallocene catalyst systems of the invention have unexpectedly high activity as compared to the catalyst systems previously described. In one embodiment of the present invention the supported catalyst is a monocyclopentadienyl transition metal metallocene compound and an ionic activator. Thus, the supported catalyst system of the present invention is broadly defined as a catalyst system which comprises a carrier, a monocyclopentadienyl bridged heteroatom transition metal containing compound, an ionic activator and a supported organometallic compound.
Patent CA-2177432-A1 (CA)
Inventor: BAUER HERMANN
IPC: B60R21/26
Filed: 1996-05-27
Abstract: The invention describes a gas generator, in particular for passive retention systems having regulatable gas flow. Conventional systems do not permit a regulation of the gas flow or only a stepwise regulation. Inflation conditions which are not adjusted to the specific requirements have the consequence of failing to optimally control the processes which are relevant to safety. In accordance with the invention continuous regulation is achieved in that a movable, controllable cover is positioned, for example by means of a magnet and a spring, in such a fashion that the flow output opening can be opened or closed in accordance with the requirements. In this fashion the retention system can be controlled in a temperature independent fashion and in the event of an accident, the inflation velocity and inflation pressure can be adjusted to prevailing conditions and even be changed during the course of the accident.
Patent CA-2179776-A1 (CA)
Title: Method and apparatus for transducerless flux, position and velocity estimation in drives for ac machines
Inventor: JANSEN PATRICK L
IPC: H02P21/00
Filed: 1994-12-16
Abstract: Power is provided to the stator windings of an AC motor (31) from inverter drive system (38). The inverter (38) receives command signals for the fundamental frequency d and q axis currents (40, 41) and higher frequency voltage command signals (42) from a position and velocity observer (43).  The position and velocity observer (43) uses information from the signals (44, 45) to provide estimates for the rotor position and speed provided as output signals (47, 48). The direct field oriented controller (50) includes a flux regulator (58), a torque calculator (60) and a rotor flux observer (61) and provide the inverter (38) with the fundamental frequency current command signals (40 41). Conventional induction motors can be provided with sufficient spatial variations in the stator winding impedance as a function of rotor position by varying the depth and/or width of the slots over the rotor conductive bars or by varying the cross-section of the bars, or by filling or partially filling some of the slots.